Senate Intelligence Committee vice chairman Sen. Marco Rubio says that 'something is off with' Russian President Vladimir Putin

As the people of Ukraine continue to come under assault by invading Russian forces, U.S. Sen. Marco Rubio tweeted that "something is off with" Russian President Vladimir Putin.

"I wish I could share more,but for now I can say it’s pretty obvious to many that something is off with #Putin," Rubio wrote. "He has always been a killer,but his problem now is different & significant," the lawmaker continued. "It would be a mistake to assume this Putin would react the same way he would have 5 years ago."

The Florida Republican, who has served in the U.S. Senate for more than a decade, is currently the vice chairman of the Senate Select Committee on Intelligence.

"I am requesting that the Biden Admin preemptively announce that anyone who joins a puppet Russian installed govt in #Ukraine be automatically sanctioned,receive a visa ban & will be the subject of an Interpol Red Notice," Rubio also tweeted. "I ask other nations to do the same."

His comments come as Ukrainians bravely fight back against a Russian invasion.

While President Biden has said that U.S. forces will not become involved in the battle between Russia and Ukraine, he also said that America will defend NATO territory.

GOP Rep. Adam Kinzinger of Illinois has called for the establishment of a no-fly zone over Ukrainian airspace.